/* 把鞋码转换成英尺 */
#include <stdio.h>
#define ADJUST 7.31

int main(void)
{
	const double SCALE = 0.333;
	double shoe, foot;
	
	shoe = 9.0;
	foot = SCALE * shoe + ADJUST;
	printf("Shoe size (men's)  foot length\n");
	printf("%10.1f %15.2f  inches\n", shoe, foot);

	return 0;
}
